[asterisk-bugs] [Asterisk 0018635]: No Re-Invite message from Asterisk to the peer when trying for FAX pass-through

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18635 
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Reported By:                pkolusu
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18635
Category:                   PBX/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           Older 1.6.2 - please test a newer version 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2011-01-18 04:17 CST
Last Modified:              2011-01-18 14:29 CST
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Summary:                    No Re-Invite message from Asterisk to the peer when
trying for FAX pass-through
Description: 
I have been trying to test fax pass-through with Asterisk.
The scenario is like this. 
Two fax machines are connected to the ports that are configured with
Asterisk server.

When i am trying to send fax from one port to another port, the receiving
port is detecting the fax tone, after initial call set up, and sending the
re-invite to change the codec to G711(PCMA), it is receving the response
from the Asterisk (Trying and 200 OK), but there is no re-invite message
from the Asterisk server to the peer(in this case fax initiator). 

i am expecting the re-invite message from the Asterisk to the peer to
change the codec to G711(PCMA), but it is not happening. what is the
problem i did not understand. 

I have tried with canreinvite=yes and no and nat=yes and nerver. but the
behaviour is same. no re-invite message from the Asterisk to the peer.


Could you please help me to resolve this issue.
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 (0130638) mnicholson (administrator) - 2011-01-18 14:29
 https://issues.asterisk.org/view.php?id=18635#c130638 
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Is the receiving side sending a T.38 reinvite?  Please post a 'sip debug'
trace of this problem in action.  I am not sure if there is a bug here,
what you have described thus far seems like normal behavior. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-01-18 14:29 mnicholson     Note Added: 0130638                          
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